== Dead link ==
During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!
* http://www.wateraid.org/uk/what_we_do/sustainable_technologies/technology_notes/default.asp ([http://web.archive.org/web/20120918013815/http://www.wateraid.org:80/uk/what_we_do/sustainable_technologies/technology_notes/default.asp archive])
** In [[重力流系统]] on 2017-08-26 09:34:04, 404
** In [[重力流系统]] on 2017-08-26 13:01:14, 404
** In [[Gravity-powered]] on 2021-04-25 07:23:01, 403
The web page has been saved by the Internet Archive. Please consider linking to an appropriate archived version: [http://web.archive.org/web/20120918013815/http://www.wateraid.org:80/uk/what_we_do/sustainable_technologies/technology_notes/default.asp].--[[User:Weblinkchecker|Weblinkchecker]] ([[User talk:Weblinkchecker|talk]]) 09:23, 25 April 2021 (CEST)
[[Category:Weblinkchecker reported broken links]]